Short answer
Look for the ACMI AP (Approved Product) seal, or the product in ACMI’s certified list. ASTM D-4236 on its own only means a toxicologist reviewed the product and it is labeled to match; it is not a non-toxic certificate. Choose water-based markers for kids, and supervise young children because small caps are a choking hazard.
The labels, side by side
| Label | What it means | What it does not mean |
|---|---|---|
| ACMI AP seal | A board-certified toxicologist evaluated the product and found no materials in amounts that could be toxic or injurious to humans, including children. ACMI recommends AP products for kids in sixth grade or younger. | That the product is food safe or skin safe, or that misuse is harmless. |
| ACMI CL seal | The product has hazards and is labeled with cautions and safe-use instructions. ACMI says never to give CL products to children in sixth grade or younger. | That it is safe for kids. It is not. |
| Conforms to ASTM D-4236 | A toxicologist reviewed the product for chronic hazards and it carries any warnings needed. US art materials must carry this statement. | Non-toxic. A conforming product can still carry a warning. |
| Non-toxic (on its own) | A maker’s claim. | Any specific test or certification, unless a seal or standard is named. |
ACMI runs a searchable list of certified products on its classroom safety page. Certification can apply product by product: Liquitex, for example, notes on its Carbon Black acrylic marker that the product is AP certified even if the seal is not on the packaging.
A kid-safe paint pen checklist
- AP seal or certified listing
On the pack, the maker’s site, or ACMI’s product search.
- Water-based paint
Water-based pigment and acrylic markers have little odor and clean up with water while wet. Skip oil-based and solvent paint markers for children.
- Age and supervision
Posca, for one, says its markers can be used by children in a supervised creative activity. Caps and mixing balls are small parts.
- Easy mechanism
Cotton core and direct-ink markers need no pumping, so there are fewer floods and spills. In independent testing, cotton core markers were described as mess-free and a good option for kids, though less opaque.
- Surfaces kids can use
Paper, card, rocks and wood. Not skin, not anything that touches food, and not clothes unless you plan to heat-set the design.
Where to start for kids
Many families buy a cotton core or direct-ink set for young kids and keep pump-action markers for older kids and adults. Check every set for the AP seal before buying, because budget sets vary. Our rock painting guide has notes on which markers held up on stones, a favorite kids’ project.
Browse kid-friendly paint markers on Amazon
Prefer to see the picks by surface? Try the marker picker. For grown-up projects with oil-based pens, see acrylic vs oil-based paint pens.
Questions people ask
Is ASTM D-4236 the same as non-toxic?
No. In the US, art materials must carry a statement that they conform to ASTM D-4236 after a toxicologist has reviewed them. A product can conform and still carry a health warning. The AP seal is the stronger signal.
Are Posca markers non-toxic?
Posca says its markers can be used by children within a creative activity supervised by adults, and that they are not certified for cosmetic use, so not on skin. For certification, check the packaging in your country or ACMI’s certified product list.
Are paint pens safe for toddlers?
Paint pens are not toys. Small caps and mixing balls are choking hazards, and pump valves can spill. For toddlers, washable chunky markers or crayons with the AP seal are a better fit.
Can kids use paint pens on their skin?
No. Paint markers are not made for skin. Posca, for example, states its markers are not certified for cosmetic use. Use face paint made for skin instead.
Do oil-based paint pens need ventilation?
Yes. Oil-based and solvent markers give off fumes as they dry. Use them in a well-ventilated room and keep them away from young children.
Sources
Last reviewed 2026-10-12. Specs and availability change; check the listing before you buy.